So I got some general questions about hi-res digital audio. First, for the streaming services that do offer hi-res streaming, is it mostly newer music that's available in hi-res, or is there a lot of older (before 2000s) music available in hi-res also? For older stuff, do they usually re-master from original (analog) tapes (where available) or pull from previous hi-res digital transfers? What sources are used to generate the hi-res files? Like for stuff from the 90s, a lot of albums were tracked to ADAT and mastered to DAT at CD-quality (or 20-bit 48 kHz at best). How would hi-res files improve upon CD rips when the source material is at that quality?
I understand for newer stuff from the past 10, maybe 15 years and in the future, hi-res is an improvement over CD-quality since even for basic home recording, 24-bit high-sample rate has been readily attainable & even the standard. But just curious about the quality of older stuff in hi-res. Also, does anyone offer high-res purchases & downloads (not streaming)? I know I've seen some of my bandcamp purchases available in hi-res, but was wondering if there's any larger marketplaces for hi-res files. I prefer "owning" the files and using my preferred player, instead of relying on streaming services and possible unavailability of certain songs or albums.
I ripped almost all of my CDs (600+) to lossless many years ago. For convenience purposes, I use iTunes to manage & play my library. Converts the files to max-quality lossy AAC when syncing to my phone (which I'm okay with for the car/work). But it plays the original lossless files at home. I have an Apple Airport Express hooked up to my main system, and I stream from iTunes on my iMac to it via Airplay 2. I have Sonos speakers everywhere else that can stream via Airplay 2 as well.
Airplay is limited to 16/44.1 though I believe, which is why I ask all the above. I'm planning on moving within the next 18 months, and it will involve at least partially modifying & upgrading my audio setup(s). Trying to figure if it's worth taking hi-res in consideration at this point or just wait another 5 years when it's more prevalent. I do have a small amount of hi-res files currently, but it's mostly vinyl rips of 45s or LPs that aren't readily available elsewhere digitally, and it's such a tiny portion of my music library.
Sorry for the essay lol